Summary
This perspective article examines heatwave-drought compound hazards (HDCEs) as increasingly critical climate extremes that generate disproportionate impacts on human societies and ecosystems compared to individual weather extremes. The authors explain the scientific rationale for studying HDCE dynamics, present new analytical protocols for investigating the coupled water-heat-carbon processes that drive these events, and discuss projected future trajectories and socio-economic consequences. The work addresses a significant gap in compound extremes research by emphasising the need for integrated understanding of multiple interacting climate hazards.
Regional applicability
The UK faces increasing compound heatwave-drought risks, particularly in southern England and the Midlands, with potential implications for agricultural productivity, water security, and carbon cycling in increasingly vulnerable ecosystems. Understanding HDCE mechanisms and projections is directly relevant to UK climate adaptation policy, agricultural planning, and natural resource management strategies.
Key measures
Frequency and severity of heatwave-drought compound events; water-heat-carbon coupling mechanisms; projected future changes in HDCE occurrence and intensity
Outcomes reported
The paper identifies physical mechanisms driving heatwave-drought compound events (HDCEs) and outlines new protocols for understanding water-heat-carbon coupling processes. It projects future changes in HDCEs and their implications for economic development and carbon cycle dynamics.
Topic tags
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